Get More Wood
Find Iron Ore
Craft Iron Tools
Upgrade your house (or make a village on your own)
Find Gold Ore
Find Redstone
Make Clock
Make Compass
Get 5 Gunpowder and 4 Sand
Make TNT
Find Diamond
Harvest Obsidian
Make Enchantment Table
Get Exp (or find a dungeon and make an xp/item farm)